Neuromuscular System

GENERAL ORGANIZATION

Peripheral Nervous System

Autonomic Nervous System

NEURON

NEURON

Motor Neuron

Sensory Neuron

Nerve

SYNAPSE

CHEMICAL TRANSMITTER

CHEMICAL TRANSMITTER

MOTOR UNIT

MOTOR UNIT

Motor Neuron to Fiber Ratio

Recruitment of Motor Units

Muscle Fiber Types

Two Major Factors in the Gradation of Contraction

ALL-OR -NONE PRINCIPLE

RECEPTORS

Receptors cont.

Slide 22

Muscle proprioceptors: Muscle Spindle

Muscle Spindle

Muscle Spindle

Proprioceptor:
Golgi tendon organs - (GTO)

Joint and Skin Proprioceptors

Joint and Skin Proprioceptors

Labyrinthine Proprioceptors

Neck Proprioceptors

Kinesthesis

Reflexes

Reflex arc:

Slide 34

Stretch Reflex

Stretch Reflex

Stretch Reflex

Exteroceptor Reflex

Slide 39

Exteroceptor Reflex

Exteroceptor Reflex

Slide 42